Rotor and motor

A rotor comprising:

• a circular rotor core;
• a plurality of plate-like magnets;
• and
• a pair of ring-shaped auxiliary magnets disposed, in both end faces of the rotor core in a direction of a rotating shaft thereof, respectively, in such a manner as to face the rotor core,
• wherein the rotor core has a plurality of magnet holding sections formed radially with the rotating shaft as a center,
• wherein the plate-like magnets are held in the magnet holding section such that the same magnetic poles of adjacent magnets face each other in a circumferential direction of the rotor core,
• wherein the rotor core is such that an N-pole and an S-pole are alternately formed in a circumferential direction of an outer circumferential surface of the rotor core,
• wherein the auxiliary magnets are such that an N-pole and an S-pole are alternately formed circularly on an opposed face of the auxiliary magnet facing an end face of the rotor core in the direction of the rotating shaft thereof, and
• wherein the auxiliary magnets are provided such that, in a phase in a rotational direction of the rotor core, the phase of the N-pole of the opposed face is shifted relative to the phase of the N-pole in the outer circumferential surface of the rotor core.